Foot spa base



FIG. 1 is a perspective view of our foot spa base;

FIG. 2 is a front plan view;

FIG. 3 is a back plan view;

FIG. 4 is a top plan view;

FIG. 5 is a right side elevation view; and,

FIG. 6 is a left side elevation view.

The broken line showing of a seat and bowl in FIGS. 1–6 is illustrative of environmental structure only and forms no part of the claimed design. 

The ornamental design for a foot spa base, as shown and described. 